Schmitt trigger with current assistance circuit
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United States of America Patent
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Feb 13, 2024
Grant Date -
Dec 29, 2022
app pub date -
Jun 17, 2022
filing date -
Jun 23, 2021
priority date (Note) -
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Abstract
An integrated circuit includes an input pad and a Schmitt trigger coupled to the input pad. The Schmitt trigger includes a main PMOS branch that charges an intermediate node of the Schmitt trigger responsive to voltage transitions at the input node. The Schmitt trigger includes a charging assistance circuit that helps to rapidly charge the intermediate node of the Schmitt trigger. The charging assistance circuit includes a parallel PMOS branch in parallel with the main PMOS branch.
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